Dough sheeting roller



Jan. 18, 1955 A. STICELBER 2,599,736

DOUGH SHEETING ROLLER Original Filed Sept. '7, 1948 2 Sheets-Sheet lINVENTOR.

Y MERLIN A. .S'T/CELBER WEEMA 4 ATTORNEV Jan. 18, 1955 M. A. STICELBER2,699,736

DOUGH SHEETING ROLLER Original Filed Sept. 7, 1948 2 Sheets-Sheet 2INVENTOR.

MERLIN A. ST/CELBER United States Patent DOUGH SHEETING. ROLL-ERMerlin-A. Sticelber, Kansas City, Mo., assignor to Stickelber & Sons,Inez, a corporation of Missouri 1 Original application September7, 1948,Serial No. 48,042,

now Patent No. 2,600,281, dated June 10, 1952. Divided and thisapplication January15, 1951, Serial No. 206,042

2 Claims; (61. 107 12) Myinventionrelates tosheeting'mechanism for doughmolding machines,- and more particularly to sheeting rollers; Thisapplication" is a-divisiomof my application SerialNo. 48,042, filedSeptember 7', 1948, nowPatent No. 2,600,281, dated, June 10, 1952, onSheeting Mechanism for Dough Molding Machines.

It is a purpose of my invention to provide a dough sheeting device thatis provided with rollers that have surfaces, that the dough engages, ofa material to which the dough will not stick, thus making it unnecessaryto apply dusting flour to the rollers to prevent sticking of the doughpieces thereto as the same are being sheeted. The elimination of dustingflour is highly desirable because flour streaks often appear in thebaked loaf of bread if dusting flour is used, as it is usually necessaryto use excessive amounts of dusting flour to prevent sticking of thedough pieces to the rollers between which the same pass in the sheetingoperation.

The rollers used in my sheeting mechanism for dough molding machines areof the general character described, shown and claimed in my co-pendingapplication Serial No. 793,359, on Dough Sheeting Apparatus and Method,filed December 23, 1947. As pointed out therein, I have found out thatdough, no matter how sticky, will not stick to rollers of certainplastic materials or rollers that have a dough contacting surface madeof certain plastic materials. These plastic materials are syntheticresins, and the particular class of synthetic resins that have beenfound to act in this manner are polymers of tetrafluoroethylene. Thespecific material that I have found particularly adaptable for thispurpose is a polytetrafluoroethylene polymer, which has no true meltingpoint, but undergoes a solid-phase transition at 620 F., but at thetemperatures at which it is used in sheeting dough the strength of thematerial is not impaired and the material is not affected in any mannerby the dough, nor does it have any efiect on the dough that engages thesame, except that the dough will absolutely not stick thereto. Thismaterial will not absorb water, is substantially impermeable to moistureand does not undergo any detectable change even when exposed toweathering.

The present invention relates particularly to the structure of therollers and specifically to the means for mounting the outer syntheticresin ply on the metallic body portion or core of the roller.

Other objects and advantages of my invention will appear as thedescription of the drawings proceeds. I desire to have it understood,however, that I do not intend to limit myself to the particular detailsshown or described, except as defined in the claims.

In the drawings:

Fig. 1 is a fragmentary a set of sheeting rollers.

Fig. 2 is a similar view of cooperating pairs of sheeting rollers andconveying means cooperating therewith, and

Fig. 3 is a section taken on the line 33 of Fig. 2, partly broken away.

Referring in detail to the tapering hopper 45 is provided, which feedsdough pieces between the roller 10 that has flanges and the roller 16,which cooperates therewith to sheet dough, or in other words, to rollout the rounded pieces of dough into sheet-like form.

The roller 10 has a metal body portion 11 mounted on the shaft 12 torotate therewith and has an outer tubular or sleeve-like portion 13 of asynthetic resin, that has the property that dough will not stickthereto, fixed on vertical sectional view through drawings, a downwardlythe metal core 11 so as to rotate with-saidmetal core. A ply14of saidsynthetic resin also overlies each of the flanges 15ontl1e-inner facethereof with which the'dough will contact. The roller 16 also has ametal body portion 17 fixed on the shaft 18and an outer cylindrical ortubular ply 19 of the'synthetic resin having the above referred toproperty. The hopper side walls 20are cut away on an arc" 21*so as toclear the outer peripheryof the ply 14 of the flanges 15 and arein'alignment with said flange portions'of the roller 10: The inclinedwall 22 is cutaway to provide 'an' openingat 23, through which theroller 16 projects. The rollers '10 and 16 rotate'in 'the'directionsindicated by thearrows thereon and the roller 16 is adjustable'tow'ardand away from theroller 10 in a manner to bedescribed below. The bottomedge'of the 'wall'22 and the bottom edge of the lip 24 are spacedsufiiciently from the surface of the rollers '16"and10 that there willbe no frictional contact between the'surfaces of said rollers and thehopper walls.

The roller 16 has its shaft 18 extending beyond the ing blocks 25, whichare mounted in slots 26 in the side plates 27 and 28, and are guided byengagement with suitable angle members 29 extending lengthwise of saidslots and fixed to the side walls 27 and 23. (See Fig. 3). Flanges 30are provided on the bearing blocks 25 which engage the inner faces ofthe walls 27 and 28 adjacent the slots 26. a The bearing blocks 25 arealso provided with bosses 46 in which the ends of adjusting: screws 47are screw-threadedly engaged. Said screws have knurled heads or handwheels 48 by means of which the same are rotated to adjust the positionof the shaft 18 and thus of the roller 16. The roller 16, preferably,has the surface thereof provided with grooves 35 to provide means forgripping the rounded dough pieces to positively pull the same intocooperative relation with the rollers 10 and 16.

In Fig. 2 are shown sheeting rollers, which are similar to the rollers10 and 16, there being an upper and a lower pair of sheeting rollersprovided, the upper pair of rollers comprising a flanged roller 31,which is constructed in the same manner as the roller 10, and anunflanged roller 32, which is constructed in the same manner as theroller 16, except that the roller 16 has the surface thereof providedwith the grooves 35 to provide means for gripping the rounded doughpieces. The lower set of rollers comprises a flanged roller 33, alsosimilar to the roller 10, and an unfianged roller 34, also similar tothe roller 16. In order to direct the sheeted pieces of dough travelingalong the conveyor belt 49 and discharge therefrom properly intocooperative relation with the upper pair of sheeting rollers 31 and 32,guiding means are provided, comprising guide plates 36. A pair of guideplates 50 are provided, similar to the guide plates 36 but slightlydifferent in shape.

As the detailed construction of the rollers 31 and 33 is the same as theroller 10 and the detailed construction of the rollers 32 and 34 is thesame as that of the roller 16, except that these do not have the grooves35, the same reference numerals are applied to the corresponding partsof the rollers 10, 31 and 33, and the corresponding parts of the rollers16, 32 and 34. The rollers 31, 32, 33 and 34 rotate in the directionindicated by the arrows provided thereon in Fig. 2.

The dough pieces will be guided into position between the rollers 31 and32 by means of the guide plates 36 and will be sheeted by thecooperative action of said rollers and will then pass toward the rollers33 and 34.

The means for holding the adjustable rollers in fixed position on theshafts on which the same are mounted is shown in Fig. 3, the shaft 37being shown as being provided with tapering openings 38 therein thatalign with tapering openings 39 and 40 in the metallic body portion 17of the roller and tapering pins 41 are driven in said aligning taperingopenings to fix the body portion 17 to the shaft. The rollers 31, 33 and34 are fixed on the shafts 51, 52 and 53, respectively, in a similarmanner. The outer sleeve-like synthetic resin member 19 is fixed to thebody portion 17 to rotate therewith by means of clamping rings 42 thatseat in recesses 43 in the ends of the tubular member 19 and which areheld in clamping engagement therewith by means of the screw-threadedfastening elements 44 that engage in screw-threaded openings in the endwalls of the body portion 17.

The synthetic resin that is employed in the tubular members 13 and 19and the disk-like facings 14 is a synthetic 'resin that has thecharacteristic that dough will not stick thereto, and is rigid andunyielding, the particular material that has been found most adaptablebeing a polytetrafiuoroethylene polymer, such as described in the patentto Plunkett, 2,230,654, patented February 4, 1941.

What I claim is:

1. A dough sheeting roller of the character described having an innermetallic load sustaining core, a polytetrafluoroethylene sleeve mountedon said core, said sleeve having seats in the end faces thereof, andmeans for securing said sleeve on said core comprising rings engagingthe ends of said core and said seats in said sleeve, and fasteningelements detachably securing said rings in fixed position on said corewith the outer faces of said rings flush with the extremities of saidsleeve. 1

2. Adough sheeting roller of the character described having an innermetallic load sustaining core, an outer tubular polytetrafluoroethylenesurface covering of fixed shape mounted on said core, said surfacecovering having a recessed end, a metallic .cnd member having an outerportion seated in said recess and an inner portion engaging an end faceof said core, said outer portion having a flat outer face, and fasteningelements detachably securing said end member to said core to hold thesame in engagement with said surface covering, with said outer portionconfined within said recess, said end of said surface covering havingitsperipheral edge portion flush with the outer flat face of saidmetallic end member.

References Cited in the file of this patent UNITED STATES PATENTS102,104 Forsyth et a1. Apr. 19, 1870 1,496,692 Voss: June 3, 19241,498,180 Linder June 17, 1924 1,887,436 Schacht et al.' Nov. 8, 19321,931,614 Kirchhoff Oct. 24, 1933 2,425,356 Sticelber ...'Aug. 12, 19472,484,670 Baker Oct. 11, 1949 2,501,629 Goulding Mar. 21, 1950

